Home / 2,431.72-3,355-1,437.34

Finding the Fourth Proportional to 2,431.72, 3,355 and 1,437.34

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Solution

The fourth proportional to 2,431.72, 3,355 and 1,437.34 is: 1,983.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.72 : 3,355 = 1,437.34 : x
  2. Step 2: Convert to fraction form
    2,431.72/3,355 = 1,437.34/x
  3. Step 3: Cross multiply
    2,431.72x = 3,355 × 1,437.34
  4. Step 4: Simplify right side
    2,431.72x = 4,822,275.70
  5. Step 5: Solve for x
    x = 4,822,275.70/2,431.72
  6. Step 6: Final answer
    x = 1,983.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.